Valve.



A. ENGEL.

VALVE.

APPLICATION FILED OCT- 6. 191a.

1,19,530. Patented July 11, 1916.

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llbi l ll erarne rarnnrr oriupn AUGUST ENGEL, OF MILWAUKEE, WISCONSIN, ASSIGNOR T0 MILWAUKEE BRASS MANUFACTURING COMPANY, OF MILWAUKEE, WISCONSIN.

VALVE.

Specification of Letters Patent.

Patented July til, 1916.

Application filed October 6, 1913. Serial No. 793,655.

To all whom it may concern:

Be it known that I, AUGUST ENGEL, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Visconsin, have invented certain new and useful Improvements in Valves; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention has for its object to provide a simple, economical and effective pressure-controlled stopper for fluid valves of any form, the same being exemplified in this instance in connection with a basin cock of the compression type.

Under ordinary conditions it is the practice to employ some type of cut-off valve remote from the cock in connection with the water-supply pipe, whereby the said supply is checked when it is desired to dismantle the cock for repairs such, for example, as renewin the valve disk facing or gland packing. This arrangement for cutting off the main supply adds more or less to the expense of installing a system and is also inconven- Hence my device is designed to overcome such objectionable features by reducing the cost of installation and also the labor required in cutting off the supply at a dis tance from the cock to be repaired, it being borne in mind that my device constitutes a part of the cock and operates in conjunction with the master valve, whereby the flow of water is checked when said master valve is moved from the range of its normal action.-

lVith the above objects in view the invention consists in certain peculiarities of con struction and combination of parts as fully set forth hereinafter with reference to the accompanying drawing and subsequently claimed.

The drawing illustrates an elevation of a valve of the cock type embodying the features of my invention, the said cock being partly broken away and in section to more clearly illustrate details of construction.

Referring by characters to the drawing, 1 represents a valve casing provided with the usual valve chamber 2, nozzle 3 and a channeled exteriorly threaded water-supply shank 4, the said channel being provided with a contracted intake mouth. The shank channel communicates with the valve chamber through the medium of a port 5 having an upper seat 5 and lower beveled seat 5", the said port being slightly restricted relative to the flow channel. The upper valve seat 5 is adapted to receive a master valve having play in the chamber 2, the said valve comprising a valve disk 6, which disk is faced with the ordinary type of yieldable gasket 6', the same being secured by asetscrew 6 that normally extends through the port to form an engaging nipple for a'pressure-controlled hollow stopper 7, constituting an auxiliary valve member. The valve disk 6 is carried by a stem 8, the same being in threaded union with a gland 8 that forms a cap-closure for the valve-casing 1, which structural features are of standard type and form no part of my invention. The water supply channel ofthe casing shank 4 at its mouth is slightly restricted, being of such diameter as to admit the insertion of the stopper 7 The stopper is drawn out from a metallic blank in hollow shell-like form having a co-nically shaped closed head and an open flared bottom. After the stopper is assembled within the flow channel the walls of the same are slightly expanded at their open bottom edge, as shown, whereby said stopper is confined within the shank, the expanded end being of slightly greater diameter than the contracted mouth portion of said shank. The stopper is also provided with a conical head 7, whereby water is permitted to readily flow over its side walls about the head and through the port 5, when the plug is held from its seat by contact with the head of the set-screw 6", it being understood that the conical head of the plug forms a closure for the lower port seat 5 through the influence of the water pressure when the master valve is lifted beyond its normal range of travel and said stopper head when so seated projects through the port into the valve chamber to form a stem for engagement with the valve set-screw 6 when the stopper is unseated. It is also apparent that the stopper is adapted to have play in all directions within the flow channelbut is confined at its ends by the restricted port in one direction and the restricted mouth of the shank in the other direction.

From the foregoing description it is apparent that any standard type of valve may be equipped with the hollow stopper without changing the construction of said valve, the said stopper being 101? ly caged within the shank of the valve casing and arranged to seat under water pressure, to thus cut off the flow of Water when the master valve is lifted to an abnormal position. It is also apparent that When the master valve engages the upper-port seat,"the projecting head of set-screw 6 will engage'and force the plug downward a considerable distance from thevalve seat 5 in opposition to the water pressure. Hence when the master valve is partly open or full open, the movement thereof is not sufficient to permit the stopper 7 closing the Water-supply port, so

j condition. Should it be desired to remove the valve stem for repairs, it is obvious that,

thatv a full' flow of'water is insured under all by revolving said stem in the opening direction to a point Where the nipple (3 will assume V aposition above the plane of the valveseat 5, thestopper Will be free to travelup under the control of the Water-supply and thus positively check the flow. Hence the valve stem, together with the gland and valve-disk, can be all removed from the cas- 1ng for necessary repairs, under which condltlOIlSthG water W111 be automat cally cut off. i V

A further advantage of my invention lies in the fact'that in instanceswhere the pressure .of the Water'is above normal, spattering caused through the impact of the streamagainst the basin or other'receptacle into WhiCllSaiCl stream flows will be avoided. This'result is due to the fact thatthe stopper partially fills the flow channel, whereby the volume of Water is restricted sufficiently to cause only a gentle flow from the Copies of this patent may be obtained for and the outer end of the stopper bein nozzle in place of a stream under pressure that Would ordinarily result.

An important feature of my invention resides in the fact that the metallic stopper is 7 open at its lower end to permit a certain from the casing and having its bore reduced at its ends, a valve seat in the casing surrounding a port forming a continuation of the inner reduced bore end of the neck, and a valve engageable on said seat, a hollow cy- I 'lindrical stopper member closed and engageable with the valve at its inner end and of a diameter not greater than the diameter of the outer reduced end of the said neck,

D spread to prevent its movement past the outer end of the inlet neck. In testimony that I claim the foregoing I'have hereunto set my hand at Milwaukee in the county of Milwaukee and State of Wisconsin in the presence of two witnesses.

AUGUST ENGEL. Witnesses:

AUGUs'r J. Wnsnn, DAVID MUELLER.

five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

